* Correct use of <> diamond operator
* Correct modifiers order
* Private constructor for utility class
* Correct use of diamond operator
* Corrected naming convention
* Correct modifier order
* Use not synchronized class
* Introduced try/resource in stream copy
* Removed unused private field
* Code reformat
Reformat of IOUtils.copy from to stream
* Add a space
Improved code formatting
* Code reformat
Only a new space
* Code reformat
Removed extra spaces